Finding the Fourth Proportional to 393,332.84, 542,798.16 and 223,599.68
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Solution
The fourth proportional to 393,332.84, 542,798.16 and 223,599.68 is: 308,566.90
Step by Step Solution
- Step 1: Write the proportion equation
393,332.84 : 542,798.16 = 223,599.68 : x - Step 2: Convert to fraction form
393,332.84/542,798.16 = 223,599.68/x - Step 3: Cross multiply
393,332.84x = 542,798.16 × 223,599.68 - Step 4: Simplify right side
393,332.84x = 121,369,494,880.59 - Step 5: Solve for x
x = 121,369,494,880.59/393,332.84 - Step 6: Final answer
x = 308,566.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.